Chapter 12. Onion, Leek, and Chive Production (original) (raw)
Table 7. Onion fungicides ordered by disease and then FRAC group according to their mode of action. Labels change frequently. Be sure to read a current product label before applying any chemical. Please refer to chapter 19 for information on biopesticides, including materials labeled for certified organic production. Contact: Pamela Roberts, UF/IFAS Southwest Florida Research and Education Center.
| Pertinent Diseases or Pathogens | Fungicide Group1 | Chemical (Active Ingredients) | Max Rate/Acre | Min. Days to | Remarks2 | ||
|---|---|---|---|---|---|---|---|
| Appl. | Season | Harvest | Reentry | ||||
| Bacterial blight (Xanthomonas axonopodis pv. allii) | M1 | (copper compounds) Many brands available: Badge SC, Badge X2, Champ DP, Champ F2 FL, Champ WG, Cuprofix Ultra 40D, Cuproxat, Cueva, Kentan DF, Kocide 2000, Kocide 3000, Kop-hydroxide, Master Cop, Nu-Cop 50WP, Nu-Cop 50DF, Nu-Cop HB, Previsto | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 0 | Varies by product from 4 hr to 2 days | Frequent use of copper fungicides may cause foliar burn. |
| M1 + M3 | Mankocide (copper hydroxide + mancozeb) | 2.25 lb | 160 lb (per crop) | 7 | 2 | Do not apply to exposed bulbs. | |
| P01 | Actigard 50WG (acibenzolar-S-methyl) | 1 oz | 4 oz | 7 | 0.5 | Do not apply to plants that are stressed or prior or within 5 days of transplanting. Suppression only. | |
| 27 + 11 | Tanos (cymoxanil + famoxadone) | 8 oz | 84 oz | 3 | 0.5 | See label. Suppression only. | |
| Black mold (Aspergillus niger) | 9 + 12 | Switch 62.5WG Alterity 62.5WG Palladium (cyprodinil + fludioxonil) | 14 oz | 56 oz | 7 | 0.5 | No more than 2 consecutive applications. Do not plant crops not on the label for 30 days after last application. |
| 9 + 3 | Inspire Super Vango ESQ (cyprodinil + difenoconazole) | 20 fl oz | SEE INDIVIDUAL LABEL | See label. Suppression only. | |||
| 7 + 3 | Luna Flex (fluopyram + difenocoazole) | 13.6 fl oz | 27.2 fl oz | 7 | 0.5 | Suppression only. | |
| 9 + 12 | Alerity 62.5WG (cyprodinil + fludioxonil) | 14 oz | 56 oz per year | 7 | 0.5 | Suppression only. | |
| Botrytis leaf blight (Botrytis squamosa) | M1 + M3 | ManKocide (copper hydroxide + mancozeb) | 2.25 lb | 160 lb (per crop) | 7 | 2 | Do not apply to exposed bulbs. |
| M3 | (mancozeb) Many brands available: Dithane DF, Dithane F45, Dithane M45, Koverall, Manzate, Manzate Pro-Stik, Penncozeb 4FL, Penncozeb 75DF, Penncozeb 80WP, Roper DF | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | Do not apply to exposed bulbs. | |
| M5 | (chlorothalonil) Many brands available: Bravo Ultrex, Bravo Weather Stik, Bravo Zn, Chloronil 720, Chlorothalonil 720 EC, Echo 720, Echo 90 DF, Echo Zn, Equus 500 Zn, Equus 720 SST, Equus DF, Initiate 720, Initiate ZN | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | Dry bulb: 7 Green: 14 | 1 | – | |
| 2 | (iprodione) Many brands available: Enclosure 4, Iprodione 4L AG, Meteor, Nevado 4F, Rovral 4 Flowable | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | – | |
| 3 | (propiconazole) Many brands available: Amtide Propiconazole 41.8% EC, Bumper 41.8 EC, Bumper ES, Fitness, Propicure, Propimax EC, Propistar EC, Shar-Shield PPZ, Tide Propiconazole EC, Tilt | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | See label | 0.5 | Suppression only. | |
| 3 + 7 | Luna Experience (fluopyram + tebuconazole) | 12.8 fl oz | 25.6 fl oz | 7 | 0.5 | Alternate with fungicides of dissimilar modes of action. | |
| 4 + M5 | Ridomil Gold Bravo SC (mefenoxam + chlorothalonil) | See label | – | Dry bulb: 7 Green: 14/21 | 2 | – | |
| 7 | Endura (boscalid) | 6.8 oz | 41 oz | 7 | 0.5 | Alternate applications with a different fungicide group. | |
| 7 | Fontelis (penthiopyrad) | 24 fl oz | 72 fl oz | 3 | 0.5 | See label. | |
| 7 + 3 | Aprovia Top (difenoconazole + benzovindiflupyr) | 10.5 fl oz | 54.0 fl oz | 7 | 0.5 | Adjuvant recommended. No more than 4 applications per year. | |
| 7 + 9 | Luna Tranquility (fluopyram + pyrimethanil) | 27 fl oz | 54.7 fl oz | 7 | 0.5 | No more than 2 applications per year. | |
| 7 + 11 | Merivon Xemium (fluxapyroxad + pyraclostrobin) | 11 fl oz | 33 fl oz | 7 | 0.5 | Alternate with fungicides of dissimilar modes of action. | |
| 9 | Scala SC (pyrimethanil) | 18 fl oz | 54 fl oz | 7 | 0.5 | No more than 2 consecutive applications. | |
| 9 | Vangard WG Vango WG (cyprodinil) | 10 oz | 28 oz | 7 | 0.5 | No more than 2 consecutive applications. | |
| 9 + 3 | Inspire Super Vango ESQ (cyprodinil + difenoconazole) | 20 fl oz | SEE INDIVIDUAL LABEL | Green: 14 Dry bulb: 7 | 0.5 | No more than 2 applications before alternating with a different fungicide group. | |
| 9 + 12 | Switch 62.5WG Alterity 62.5WG Palladium (cyprodinil + fludioxonil) | 14 oz | 56 oz per year | 7 | 0.5 | No more than 2 consecutive applications. Do not plant crops not on the label for 30 days after last applications. | |
| 11 | Cabrio EG (pyraclostrobin) | 12 oz | 72 oz | 7 | 0.5 | Alternate applications with a different fungicide group. No more than 5 applications per crop. Suppression only. | |
| 11 | Quadris Aframe Many products: see label (azoxystrobin) | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | See label | 4 hr | Alternate applications with a different fungicide group. | |
| 11 + M5 | Quadris Opti (azoxystrobin + chlorothalonil) | 3.7 pt | SEE INDIVIDUAL LABEL | 14 | 0.5 | Alternate applications with different fungicide groups. No more than 3 applications per crop. Do not tank-mix with COC, MSO, or silicon adjuvant. | |
| 11 + 3 | Quadris Top Acadia (azoxystrobin + difenoconazole) | 14 fl oz | 42 fl oz per year | 7 | 0.5 | No more than 1 application before alternating to another fungicide with a non-QoI (Group 11) mode of action. | |
| 11 + 3 | Quilt Xcel (azoxystrobin + propiconazole) | Dry bulb: 21 fl oz Green: 26 fl oz | 56 fl oz | Dry bulb: 14 Green: 0 | 0.5 | No more than 1 application before alternating to a non-group 11 fungicide. | |
| 11 + 7 | Pristine (pyraclostrobin + boscalid) | 18.5 oz | 111 oz | 7 | 0.5 | No more than 2 consecutive applications. No more than 6 applications per crop. | |
| 14 | Botran 5F (DCNA dicloran) | 2–3.2 lb | SEE INDIVIDUAL LABEL | 14 | See label | See label. | |
| 22 + M5 | Zing! (zoxamide + chlorothalonil) | 30 fl oz | 7.5 qt | 7 | 0.5 | No more than 8 applications per year. | |
| 29 | Omega 500F (fluazinam) | 1 pt | 6 pt | 7 | 2 | – | |
| Botrytis neck rot (Botrytis allii) | M3 | (mancozeb) Many brands available: Dithane DF, Dithane F45, Dithane M45, Koverall, Manzate, Manzate Pro-Stik, Penncozeb 4FL, Penncozeb 75DF, Penncozeb 80WP, Roper DF | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | Do not apply to exposed bulbs. |
| M5 | (chlorothalonil) Many brands available: Bravo Ultrex, Bravo Weather Stik, Bravo Zn, Chloronil 720, Chlorothalonil 720 EC, Echo 720, Echo 90 DF, Echo Zn, Equus 500 Zn, Equus 720 SST, Equus DF, Initiate 720, Initiate ZN | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | Dry bulb: 7 Green: 14 | 1 | – | |
| 2 | (iprodione) Many brands available: Enclosure 4, Iprodione 4L AG, Meteor, Nevado 4F, Rovral 4 Flowable | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | – | |
| 7 | Fontelis (penthiopyrad) | 24 fl oz | 72 fl oz | 3 | 0.5 | – | |
| 7 + 3 | Aprovia Top (difenoconazole + benzovindiflupyr) | 10.5 fl oz | 54.0 fl oz | 7 | 0.5 | Adjuvant recommended. No more than 4 applications per year. | |
| 7 + 12 | Miravis Prime (pydiflumetofen + fludioxonil) | 11.4 fl/oz | 34.2 fl oz | 7 | 12 hr | – | |
| 9 | Scala SC (pyrimethanil) | 18 fl oz | 54 fl oz | 7 | 0.5 | No more than 2 consecutive applications. | |
| 9 | Vangard WG Vango WG (cyprodinil) | 10 oz | 28 oz | 7 | 0.5 | No more than 2 consecutive applications. Suppression only. | |
| 9 + 12 | Switch 62.5WG Alterity 62.5WG Palladium (cyprodinil + fludioxonil) | 14 oz | 56 oz | 7 | 0.5 | No more than 2 consecutive applications. Do not plant crops not on the label for 30 days after last application. Suppression only. | |
| 11 + M5 | Quadris Opti (azoxystrobin + chlorothalonil) | 3.7 pt | SEE INDIVIDUAL LABEL | 14 | 0.5 | Alternate applications with different fungicide groups. No more than 3 applications per crop. Do not tank-mix with COC, MSO, or silicon adjuvant. Suppression only. | |
| 11 + 7 | Pristine (pyraclostrobin + boscalid) | 18.5 oz | 111 oz | 7 | 0.5 | No more than 2 consecutive applications. No more than 6 applications per crop. | |
| 14 | Botran 5F (DCNA dicloran) | 3.5 lb | SEE INDIVIDUAL LABEL | 14 | See label | – | |
| 29 | Omega 500F (fluazinam) | 1 pt | 6 pt | 7 | 2 | – | |
| 49 + M5 | Orondis Opti (oxathiapiprolin + chlorothalonil) | 2.5 pt | 10 pt | 7 | 0.5 | No more than 2 sequential applications, and do not exceed more than 33% of all fungicide applications with Orondis. | |
| Cercospora leaf spot (Cercospora duddiae) | 11 + 3 | Quadris Top Acadia (azoxystrobin + difenoconazole) | 14 fl oz | 42 fl oz | 7 | 0.5 | No more than 1 application before alternating to another fungicide with a non-QoI (Group 11) mode of action. |
| 7 + 3 | Luna Flex (fluopyram + difenocoazole) | 13.6 fl oz | 27.2 fl oz | 7 | 0.5 | – | |
| Cladosporium leaf blotch (Cladosporium allii) | 3 + 7 + 11 | Trivapro (propiconazole + benzovindiflupyr + azoxystrobin) | 27.7 fl oz | 55.4 fl oz per year | Dry bulb: 7 Green: 14 | 0.5 | Alternate applications with a different fungicide group not in 7 or 11. |
| 7 + 3 | Aprovia Top (difenoconazole + benzovindiflupyr) | 10.5 fl oz | 54.0 fl oz | 7 | 0.5 | Adjuvant recommended. No more than 4 applications per year. | |
| 7 + 3 | Luna Flex (fluopyram + difenocoazole) | 13.6 fl oz | 27.2 fl oz | 7 | 0.5 | – | |
| 7 + 12 | Miravis Prime (pydiflumetofen + fludioxonil) | 11.4 fl/oz | 34.2 fl oz | 7 | 12 hr | – | |
| 9 + 3 | Inspire Super Vango ESQ (cyprodinil + difenoconazole) | 20 fl oz | SEE INDIVIDUAL LABEL | Green: 14 Dry bulb: 7 | 0.5 | No more than 2 applications before alternating with a different fungicide group. | |
| 11 | Quadris Aframe Many products available (azoxystrobin) | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | See label | 4 hr | Alternate applications with a different fungicide group. | |
| 11 + M5 | Quadris Opti (azoxystrobin + chlorothalonil) | 3.7 pt | SEE INDIVIDUAL LABEL | 14 | 0.5 | Alternate applications with different fungicide groups. No more than 3 applications per crop. Do not tank-mix with COC, MSO, or silicon adjuvant. | |
| 11 + 3 | Quadris Top Acadia (azoxystrobin + difenoconazole) | 14 fl oz | 42 fl oz | 7 | 0.5 | No more than 1 application before alternating to another fungicide with a non-QoI (Group 11) mode of action. | |
| 11 + 3 | Quilt Xcel (azoxystrobin + propiconazole) | Dry bulb: 21 fl oz Green: 26 fl oz | 56 fl oz | Dry bulb: 14 Green: 0 | 0.5 | No more than 1 application before alternating to a non-group 11 fungicide. | |
| Damping-off | M3 | (mancozeb) Many brands available: Dithane DF, Dithane F45, Dithane M45, Koverall, Manzate, Manzate Pro-Stik, Penncozeb 4FL, Penncozeb 75DF, Penncozeb 80WP | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | Do not apply to exposed bulbs. |
| 2 | (iprodione) Many brands available: Iprodione 4L AG, Meteor, Nevado 4F, Rovral 4 Flowable | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | – | |
| 4 | Ridomil Gold Subdue Maxx (mefenoxam) | – | – | – | See individual label. | ||
| 4 + 11 | Uniform (mefenoxam, azoxystrobin) | 0.34 fl oz/1000 ft of row | 0.34 fl oz/1000 ft of row | – | – | See label. | |
| 12 | Cannonball WG (fludioxonil) | 7 oz | 32 oz | 7 | 0.5 | – | |
| 12 | Maxim 4FS (fludioxonil) | 0.16 fl oz/100 lb seed | – | – | – | Seed treatment only. | |
| Downy mildew (Peronospora destructor) | M1 | (copper compounds) Many brands available: Badge SC, Badge X2, Basic Copper 53, Champ DP, Champ F2 FL, Champ WG, C-O-C DF, C-O-C-S WDG, C-O-C WP, Copper Count N, Cuprofix Ultra 40D, Cueva, Kentan DF, Kocide 2000, Kocide 3000, Kocide DF, Nordox, Nordox 75WP, Nu Cop 3L, Nu Cop 50DF, Nu Cop HB | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 0 | Varies from 4 hr to 2 days. | Frequent use of copper fungicides may cause foliar burn. |
| M1 + M2 | Top Cop with sulfur (basic copper sulfate + sulfur) | 2–3 qt | See label | 0 | 1 | Do not use during hot weather or within 4 weeks of an oil application. | |
| M1 + M3 | Mankocide (copper hydroxide + mancozeb) | 2.25 lb | 160 lb (per crop) | 7 | 2 | Do not apply to exposed bulbs. | |
| M3 | (mancozeb) Many brands available: Dithane DF, Dithane F45, Dithane M45, Koverall, Manzate, Manzate Pro-Stik, Penncozeb 4FL, Penncozeb 75DF, Penncozeb 80WP | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | Do not apply to exposed bulbs. | |
| M5 | (chlorothalonil) Many brands available: Bravo Ultrex, Bravo Weather Stik, Bravo Zn, Chloronil 720, Chlorothalonil 720 EC, Echo 720, Echo 90 DF, Echo Zn, Equus 500 Zn, Equus 720 SST, Equus DF, Initiate 720, Initiate ZN | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | Green: 14 Dry bulb: 7 | 1 | Suppression only. | |
| 4 + M1 | Ridomil Gold/Copper (mefenoxam + copper hydroxide) | 2 lb | – | Green: 7 Dry bulb: 10 | 2 | No more than 0.4 lb a.i./A of metalaxyl or mefenoxam. | |
| 4 + M3 | Ridomil Gold MZ WG (mefenoxam + mancozeb) | 2.5 lb | – | Dry bulb: 7 | 2 | – | |
| 4 + M5 | Ridomil Gold Bravo SC (mefenoxam + chlorothalonil) | See label | – | Dry bulb: 7 Green: 14/21 | 2 | – | |
| 11 | Cabrio EG (pyraclostrobin) | 12 oz | 72 oz | 7 | 0.5 | Alternate applications with a different fungicide group. No more than 5 applications per crop. | |
| 11 | Quadris Aframe (azoxystrobin) | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | See label | 4 hr | Alternate applications with a different fungicide group. | |
| 11 | Reason 500SC (fenamidone) | 5.5 fl oz | 22 fl oz | 7 | 0.5 | Alternate applications with a different fungicide group. | |
| 11 + M5 | Quadris Opti (azoxystrobin + chlorothalonil) | 3.7 pt | See label | 14 | 0.5 | Alternate applications with a different fungicide group. No more than 3 applications per crop. Do not tank-mix with COC, MSO, or silicon adjuvant. | |
| 11 + 3 | Quilt Xcel (azoxystrobin + propiconazole) | Dry bulb: 21 fl oz Green: 26 fl oz | 56 fl oz | Dry bulb: 14 Green: 0 | 0.5 | No more than 1 application before alternating to a non-group 11 fungicide. | |
| 11 + 7 | Pristine (pyraclostrobin + boscalid) | 18.5 oz | 111 oz | 7 | 0.5 | No more than 2 consecutive applications. No more than 6 applications per crop. Suppression only. | |
| 21 | Actigard 50WG (acibenzolar-S-methyl) | 1 oz | 4 oz | 7 | 0.5 | Do not apply to plants that are stressed or prior or within 5 days transplanting. Suppression only. | |
| 21 | Ranman (cyazofamid) | 3 fl oz | 16.5 fl oz | 0 | 0.5 | Alternate with fungicides of dissimilar modes of action. No more than 3 sequential applications. | |
| 22 + M5 | Zing! (zoxamide + chlorothalonil) | 30 fl oz | 7.5 qt | 7 | 0.5 | No more than 8 applications per year. | |
| 27 + 11 | Tanos (cymoxanil + famoxadone) | 8 oz | 84 oz | 3 | 0.5 | – | |
| 29 | Omega 500F (fluazinam) | 1 pt | 6 pt | 7 | 2 | – | |
| 33 | Aliette WDG Linebacker WDG (fosetyl-Al) | 3 lb | 7 applications | See label | See label | Do not tank mix with copper fungicides, adjuvants, or foliar fertilizers. | |
| 33 | (mono- and dipotassium salts of phosphorous acid) Many brands available: Alude, Confine Extra, Fosiphite, Fungi-Phite, K-Phite 7LP, Oxiphos, Phiticide, Prophyt, Phostrol, Rampart, Reveille | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 0 | 4 hr | See label for details. | |
| 40 | Forum (dimethomorph) | 6 oz | 30 oz | 0 | 0.5 | Must be applied in a tank mix with another fungicide active against downy mildew. No more than 2 sequential applications. | |
| 40 | Revus (mandipropamid) | 8 fl oz | Dry: 32 fl oz Green: 24 fl oz | 7 | 4 hr | No more than 2 consecutive applications before switching to a non-group 40 fungicide. A silicon-based adjuvant must be added at recommended rates. | |
| 40 + 45 | Zampro (dimethomorph + ametoctradin) | 14 fl oz | 42 fl oz | 0 | 0.5 | See label. | |
| 43 | Presidio (fluopicolide) | 4 fl oz | – | 2 | 0.5 | No more than 4 applications of Presidio per season. | |
| 49 + M5 | Orondis Opti (oxathiapiprolin + chlorothalonil) | 2.5 pt | 10 pt | 7 | 0.5 | No more than 2 sequential applications and do not exceed more than 33% of all fungicide applications with Orondis. | |
| 49 + 40 | Orondis Ultra (oxathiapiprolin + mandipropamid) | 8 fl oz | Dry: 32 fl oz Green: 24 fl oz | 7 | 4 hr | No more than 2 sequential applications and do not exceed more than 33% of all fungicide applications with Orondis. | |
| Iris Yellow Spot (Iris yellow spot virus) | 21 | Actigard 50WG (acibenzolar-S-methyl) | 1 oz | 4 oz | 7 | 0.5 | Do not apply to plants that are stressed or prior or within 5 days transplanting. Suppression only. |
| Powdery mildew | M2 | (sulfur) Many brands available: Kumulus DF, Microfine Sulfur, Micro Sulf, Microthiol Disperss, Sulfur 90W, Yellow Jacket Wettable Sulfur | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 0 | 1 | Do not use during hot weather or within 4 weeks of an oil application. |
| 3 + 7 + 11 | Trivapro (propiconazole + benzovindiflupyr + azoxystrobin) | 27.7 fl oz | 55.4 fl oz per year | Dry bulb: 7 Green: 14 | 0.5 | Alternate applications with a different fungicide group not in 7 or 11. | |
| 7 | Fontelis (penthiopyrad) | 24 fl oz | 72 fl oz | 3 | 0.5 | – | |
| 7 + 3 | Aprovia Top (difenoconazole + benzovindiflupyr) | 10.5 fl oz | 54.0 fl oz | 7 | 0.5 | Adjuvant recommended. No more than 4 applications per year. | |
| 7 + 3 | Luna Flex (fluopyram + difenocoazole) | 13.6 fl oz | 27.2 fl oz | 7 | 0.5 | – | |
| 9 + 3 | Inspire Super Vango ESQ (cyprodinil + difenoconazole) | 20 fl oz | See label | Green: 14 Dry bulb: 7 | 0.5 | No more than 2 applications before alternating with a different fungicide group. | |
| 11 | Cabrio EG (pyraclostrobin) | 12 oz | 72 oz | 7 | 0.5 | Alternate applications with a different fungicide group. No more than 5 applications per crop. | |
| 11 + 3 | Quadris Top Acadia (azoxystrobin + difenoconazole) | 14 fl oz | 42 fl oz | 7 | 0.5 | No more than 1 application before alternating to another fungicide with a non-QoI (Group 11) mode of action. | |
| Purple blotch (Alternaria porri) | M1 | (copper compounds) Many brands available: Badge SC, Badge X2, Basic Copper 53, Champ DP, Champ F2 FL, Champ WG, C-O-C DF, C-O-C-S WDG, C-O-C WP, Copper Count N, Cueva, Cuprofix Ultra 40D, Cuproxat, Kentan DF, Kocide 2000, Kocide 3000, Kocide DF, Kop-hydroxide, Nordox, Nordox 75WP, Nu Cop 3L, Nu Cop 50DF, Nu Cop HB | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 0 | Varies from 4 hr to 2 days. | Frequent use of copper fungicides may cause foliar burn. |
| M1 + M2 | Top Cop with sulfur (basic copper sulfate + sulfur) | 3 qt | SEE INDIVIDUAL LABEL | 0 | 1 | Do not use during hot weather or within 4 weeks of an oil application. | |
| M1 + M3 | Mankocide (copper hydroxide + mancozeb) | 2.25 lb | 160 lb (per crop) | 7 | 2 | Do not apply to exposed bulbs. | |
| M3 | (mancozeb) Many brands available: Dithane DF, Dithane F45, Dithane M45, Koverall, Manzate, Manzate Pro-Stik, Penncozeb 4FL, Penncozeb 75DF, Penncozeb 80WP, Roper DF | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | Do not apply to exposed bulbs. | |
| M5 | (chlorothalonil) Many brands available: Bravo Ultrex, Bravo Weather Stik, Bravo Zn, Chloronil 720, Chlorothalonil 720 EC, Echo 720, Echo 90 DF, Echo Zn, Equus 500 Zn, Equus 720 SST, Equus DF, Initiate 720, Initiate Zn | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | Green: 14 Dry bulb: 7 | 1 | – | |
| 2 | (iprodione) Many brands available: Enclosure 4, Iprodione 4L AG, Meteor, Nevado 4F, Rovral 4 Flowable | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | – | |
| 3 | (propiconazole) Many brands available: Amtide Propiconazole 41.8% EC, Bumper 41.8 EC, Bumper ES, Fitness, Propimax EC, Propistar EC, Shar-Shield PPZ, Tide Propionazole EC, Tilt | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | See label | 0.5 | – | |
| 3 | (tebuconazole) Many brands available: Monsoon, Onset 3.6L, Orius 3.6 F, Tebu-Crop 3.6F, Tebustar 3.6 L, Tebuzol 3.6F, Toledo | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 0.5 | – | |
| 3 | Cevya (Mefentrifluconazole) | 5 fl oz | 15 fl oz | 7 | 0.5 | – | |
| 3 + M5 | Muscle ADV (tebuconazole + chlorothalonil) | 1.6 pt | 3.2 pt | 7 | 0.5 | Apply in a protective fungicide schedule. | |
| 3 + 7 | Luna Experience (fluopyram + tebuconazole) | 12.8 fl oz | 25.6 fl oz | 7 | 0.5 | Alternate with fungicides of dissimilar modes of action. | |
| 7 + 3 | Luna Flex (fluopyram + difenocoazole) | 13.6 fl oz | 27.2 fl oz | 7 | 0.5 | – | |
| 3 + 7 + 11 | Trivapro (propiconazole + benzovindiflupyr + azoxystrobin) | 27.7 fl oz | 55.4 fl oz per year | Dry bulb: 7 Green: 14 | 0.5 | Alternate applications with a different fungicide group not in 7 or 11. | |
| 4 + M5 | Ridomil Gold Bravo SC (mefenoxam + chlorothalonil) | See label | – | Dry bulb: 7 Green: 14/21 | 2 | – | |
| 7 | Endura (boscalid) | 6.8 oz | 41 oz | 7 | 0.5 | Alternate applications with a different fungicide group. | |
| 7 | Fontelis (penthiopyrad) | 24 fl oz | 72 fl oz | 3 | 0.5 | See label. | |
| 7 + 3 | Aprovia Top (difenoconazole + benzovindiflupyr) | 10.5 fl oz | 54.0 fl oz | 7 | 0.5 | Adjuvant recommended. No more than 4 applications per year. | |
| 7 + 9 | Luna Tranquility (fluopyram + pyrimethanil) | 27 fl oz | 54.7 fl oz | 7 | 0.5 | No more than 2 applications per year. | |
| 7 + 11 | Merivon Xemium (fluxapyroxad + pyraclostrobin) | 11 fl oz | 33 fl oz | 7 | 0.5 | Alternate with fungicides of dissimilar modes of action. | |
| 7 + 12 | Miravis Prime (pydiflumetofen + fludioxonil) | 11.4 fl oz | 34.2 fl oz | 7 | 0.5 | – | |
| 9 | Scala SC (pyrimethanil) | 18 fl oz | 54 fl oz | 7 | 0.5 | No more than 2 consecutive applications. | |
| 9 | Vangard WG Vango WG (cyprodinil) | 10 oz | 28 oz | 7 | 0.5 | No more than 2 consecutive applications. | |
| 9 + 3 | Inspire Super Vango ESQ (cyprodinil + difenoconazole) | 20 fl oz | See label | Green: 14 Dry bulb: 7 | 0.5 | No more than 2 applications before alternating with a different fungicide group. | |
| 9 + 12 | Switch 62.5WG Alterity 62.5WG Palladium (cyprodinil + fludioxonil) | 14 oz | 56 oz | 7 | 0.5 | No more than 2 consecutive applications. Do not plant crops not on the label for 30 days after last application. | |
| 11 | Cabrio EG (pyraclostrobin) | 12 oz | 72 oz | 7 | 0.5 | Alternate applications with a different fungicide group. No more than 5 applications per crop. | |
| 11 | Quadris (azoxystrobin) | See label | 92.3 fl oz | See label | 4 hr | Alternate applications with a different fungicide group. | |
| 11 | Reason 500SC (fenamidone) | 5.5 fl oz | 22 fl oz | 7 | 0.5 | Alternate applications with a different fungicide group. | |
| 11 + M5 | Quadris Opti (azoxystrobin + chlorothalonil) | 3.7 pt | See label | 14 | 0.5 | Alternate applications with different fungicide groups. No more than 3 applications per crop. Do not tank-mix with COC, MSO, or silicon adjuvant. | |
| 11 + 3 | Quadris Top Acadia (azoxystrobin + difenoconazole) | 14 fl oz | 42 fl oz | 7 | 0.5 | No more than 1 application before alternating to another fungicide with a non-QoI (Group 11) mode of action. | |
| 11 + 3 | Quilt Xcel (azoxystrobin + propiconazole) | Dry bulb: 21 fl oz Green: 26 fl oz | 56 fl oz | Dry bulb: 14 Green: 0 | 0.5 | No more than 1 application before alternating to a non-group 11 fungicide. | |
| 11 + 7 | Pristine (pyraclostrobin + boscalid) | 18.5 oz | 111 oz | 7 | 0.5 | No more than 2 consecutive applications. No more than 6 applications per crop. | |
| 22 + M5 | Zing! (zoxamide + chlorothalonil) | 30 fl oz | 7.5 qt | 7 | 0.5 | No more than 8 applications per year. | |
| 27 + 11 | Tanos (cymoxanil + famoxadone) | 8 oz | 84 oz | 3 | 0.5 | – | |
| 29 | Omega 500F (fluazinam) | 1 pt | 6 pt | 7 | 2 | – | |
| 33 | Aliette WDG Linebacker WDG (fosetyl-Al) | 3 lb | 7 appl. | See label | See label | Do not tank mix with copper fungicides, adjuvants, or foliar fertilizers. Suppression only. | |
| 49 + M5 | Orondis Opti (oxathiapiprolin + chlorothalonil) | 2.5 pt | 10 pt | 7 | 0.5 | No more than 2 sequential applications, and do not exceed more than 33% of all fungicide applications with Orondis. | |
| Pythium damping-off | 4 | (mefenoxam) Many brands available: Apron XL, Ridomil Gold EC, Ridomil Gold SL, Ultra Flourish | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | N/A | 2 | – |
| 4 | (metalaxyl) Many brands available: Allegiance, Aquire, MetaStar 2E, Sebring 2.65 ST, Sebring 318 FS, Sebring 480 FS | – | – | – | – | – | |
| 11 + 4 | Uniform (azoxystrobin + mefenoxam) | SEE INDIVIDUAL LABEL | – | – | – | – | |
| Rhizoctonia damping-off | 11 | Dynasty (azoxystrobin) | 0.38 fl oz/100 lb seed | SEE INDIVIDUAL LABEL | See label | 4 hr | Seed treatment only. |
| 11 | Quadris (azoxystrobin) | 0.8 fl oz/1000 row feet | SEE INDIVIDUAL LABEL | 0 | 4 hr | – | |
| 11 + 4 | Uniform (azoxystrobin + mefenoxam) | See label | – | – | – | – | |
| Rust (Puccinia allii) | 3 | (tebuconazole) Many brands available: Monsoon, Onset 3.6L, Orius 3.6 F, Tebu-Crop 3.6F, Tebustar 3.6 L, Tebuzol 3.6F, Toledo | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 0.5 | – |
| 3 + M5 | Muscle ADV (tebuconazole + chlorothalonil) | 1.6 pt | 3.2 pt | 7 | 0.5 | Apply in a protective fungicide schedule. | |
| 3 + 7 + 11 | Trivapro (propiconazole + benzovindiflupyr + azoxystrobin) | 27.7 fl oz | 55.4 fl oz per year | Dry bulb: 7 Green: 14 | 0.5 | Alternate applications with a different fungicide group not in 7 or 11. | |
| 7 + 3 | Luna Flex (fluopyram + difenocoazole) | 13.6 fl oz | 27.2 fl oz | 7 | 0.5 | – | |
| 9 + 3 | Inspire Super Vango ESQ (cyprodinil + difenoconazole) | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | Green: 14 Dry bulb: 7 | 0.5 | No more than 2 applications before alternating with a different fungicide group. | |
| 11 | Cabrio EG (pyraclostrobin) | 12 oz | 72 oz | 7 | 0.5 | Alternate applications with a different fungicide group. No more than 5 applications per crop. | |
| 11 | Quadris (azoxystrobin) | SEE INDIVIDUAL LABEL | 92.3 fl oz | See label | 4 hr | Alternate applications with a different fungicide group. | |
| 11 + 3 | Quilt Xcel (azoxystrobin + propiconazole) | Dry bulb: 21 fl oz Green: 26 fl oz | 56 fl oz | Dry bulb: 14 Green: 0 | 0.5 | No more than 1 application before alternating to a non-group 11 fungicide. | |
| Seedling blight | M3 | (mancozeb) Many brands available: Dithane DF, Dithane F45, Dithane M45, Koverall, Manzate, Manzate Pro-Stik, Penncozeb 4FL, Penncozeb 75DF, Penncozeb 80WP, Roper DF | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | Do not apply to exposed bulbs. |
| 11 | Dynasty (azoxystrobin) | 0.38 fl oz/100 lb seed | SEE INDIVIDUAL LABEL | See label | 4 hr | – | |
| 12 | Maxim 4FS Spirato 480 FS (fludioxonil) | 0.16 fl oz/100 lb seed | – | – | 0.5 | – | |
| 14 | Botran 5F (DCNA dicloran) | 3.5 lb | See label | 14 | See label | – | |
| Stemphylium blight (Stemphylium vesicarium) | 2 | (iprodione) Many brands available: Enclosure 4, Iprodione 4L AG, Meteor, Nevado 4F, Rovral 4 Flowable | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 1 | – |
| 3 + 7 + 11 | Trivapro (propiconazole + benzovindiflupyr + azoxystrobin) | 27.7 fl oz | 55.4 fl oz per year | Dry bulb: 7 Green: 14 | 0.5 | Alternate applications with a different fungicide group not in 7 or 11. | |
| 7 | Fontelis (penthiopyrad) | 24 fl oz | 72 fl oz | 3 | 0.5 | – | |
| 7 + 3 | Luna Flex (fluopyram + difenocoazole) | 13.6 fl oz | 27.2 fl oz | 7 | 0.5 | – | |
| 9 + 3 | Inspire Super Vango ESQ (cyprodinil + difenoconazole) | 20 fl oz | SEE INDIVIDUAL LABEL | Green: 14 Dry bulb: 7 | 0.5 | No more than 2 applications before alternating with a different fungicide group. | |
| 9 + 12 | Switch 62.5WG Alterity 62.5WG Palladium (cyprodinil + fludioxonil) | 14 oz | 56 oz | 7 | 0.5 | No more than 2 consecutive applications. Do not plant crops not on the label for 30 days after last application. | |
| 11 + 3 | Quadris Top Acadia (azoxystrobin + difenoconazole) | 14 fl oz | 42 fl oz | 7 | 0.5 | No more than 1 application before alternating to another fungicide with a non-QoI (Group 11) mode of action. | |
| 11 + 7 | Pristine (pyraclostrobin + boscalid) | 18.5 oz | 111 oz | 7 | 0.5 | No more than 2 consecutive applications. No more than 6 applications per crop. | |
| 29 | Omega 500F (fluazinam) | 1 pt | 6 pt | 7 | 1 | Begin sprays at first development and continue on 7- to 14-day schedule. | |
| White rot (Sclerotium cepivorum) | 1 | (thiophanate-methyl) Many brands available: Incognito 4.5 F, NuFarm T-Methyl 4.5 F, NuFarm T-Methyl 70 WSB, Thiophanate-methyl 85 WDG, Topsin 4.5 FL, Topsin M 70 WDG, Topsin M 70 WP, Topsin M WSB | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | – | 3 | – |
| 3 | (tebuconazole) Many brands available: Onset 3.6L, Orius 3.6 F, Tebu-Crop 3.6F, Tebustar 3.6 L, Tebuzol 3.6F, Toledo | SEE INDIVIDUAL LABEL | SEE INDIVIDUAL LABEL | 7 | 0.5 | – | |
| 7 | Fontelis (penthiopyrad) | 24 fl oz | 72 fl oz | 7 | 0.5 | Spray into empty furrow at time of planting. | |
| 7 + 3 | Luna Flex (fluopyram + difenocoazole) | 13.6 fl oz | 27.2 fl oz | 7 | 0.5 | – | |
| 9 + 12 | Switch 62.5WG Alterity 62.5WG (cyprodinil + fludioxonil) | 14 oz | 56 oz | 7 | 0.5 | No more than 2 consecutive applications. Do not plant crops not on the label for 30 days after last application. | |
| 11 + M5 | Quadris Opti (azoxystrobin + chlorothalonil) | 3.7 pt | SEE INDIVIDUAL LABEL | 14 | 0.5 | Alternate applications with different fungicide groups. No more than 3 applications per crop. Do not tank-mix with COC, MSO, or silicon adjuvant. | |
| 12 | Cannonball WG (fludioxonil) | 7 oz | 32 oz | 7 | 0.5 | – | |
| 12 | Maxim 4FS (fludioxonil) | 0.16 fl oz/100 lb seed | – | – | 0.5 | – | |
| 14 | Botran 5F (DCNA dicloran) | 3.5 lb | SEE INDIVIDUAL LABEL | 14 | 0.5 | – | |
| 1FRAC code (fungicide group): Number (1–54) and letters are used to distinguish the fungicide mode of action groups. All fungicides within the same group (with the same number or letter) indicate the same active ingredient or a similar mode of action. This information must be considered for the fungicide resistance management decisions. Source: FRAC Code List 2025; http://www.frac.info/ (FRAC = Fungicide Resistance Action Committee). 2Information provided in this table applies only to Florida. Be sure to read a current product label before applying any chemical. The use of brand names and any mention or listing of commercial products or services in the publication does not imply endorsement by UF/IFAS Extension nor discrimination against similar products or services not mentioned. OMRI-listed: Listed by the Organic Materials Review Institute for use in organic production. |